# /iec/publications

`POST /api/iec/publications`

Price: 10 credits

Get IEC Webstore publications by id, up to 20 in one call. Returns the catalogue record: reference and its parsed parts, title, abstract, edition, status, publication date, ISBN, page count, list price in Swiss francs, the languages and file formats on sale, the technical committee and subcommittee, ICS codes with their titles, keyword and Sustainable Development Goal classifications, the full edition and amendment lifecycle, sibling publications and the publications that cite this one.

## How to use it

The id is the number in a webstore URL such as webstore.iec.ch/en/publication/4028, and this endpoint takes a list, so resolve several publications in one call rather than looping. A reference string like 'IEC 60335-1:2020' is not an id — put it in the `query` of /iec/publications/search and read the id off the result. Withdrawn, revised and replaced publications resolve here exactly like published ones, so read `status` rather than assuming a hit means the document is current; `lifecycle` lists every edition and amendment of the same base reference with its own id and status, which is how you walk from an old edition to the current one. The record is catalogue metadata only — `deliverables[].location` names the paywalled PDF path but its content is not returned. `abstract` is populated on most records overall, but fill varies sharply by publisher and deliverable type rather than by date — expect it on published, TRF and withdrawn documents, and expect it missing more often on IECEx/IECQ conformity deliverables and CISPR publications.

## Parameters

- `access-token` (string, required)

## Request body

- `timeout` (integer) — Max scrapping execution timeout (in seconds) (default: 300; min: 20; max: 1500)
- `publications` (array, required) — IEC Webstore publication ids. Accepts the bare numeric id, the `iec:pub:{id}` URN, or a webstore publication URL containing it (examples: ["4028"], ["4028","2519"], ["https://webstore.iec.ch/en/publication/91954"], ["iec:pub:66118"]; minItems: 1; maxItems: 20)

## Response

### 200 — Successful Response

- `@type` (string) (default: "IecPublication")
- `id` (string, required)
- `urn` (string, nullable)
- `url` (string, nullable)
- `art_num` (string, nullable)
- `reference` (string, nullable)
- `reference_parts` (object, nullable)
  - `@type` (string) (default: "IecReferenceParts")
  - `head` (string, nullable)
  - `number` (string, nullable)
  - `part` (string, nullable)
  - `section` (string, nullable)
  - `amendment` (string, nullable)
  - `corrigendum` (string, nullable)
  - `version` (string, nullable)
  - `issue` (string, nullable)
- `publication_title` (string, nullable)
- `abstract` (string, nullable)
- `edition` (string, nullable)
- `status` (string, nullable)
- `document_form` (string, nullable)
- `publication_date` (string, nullable)
- `isbn` (string, nullable)
- `page_count` (integer, nullable)
- `price` (object, nullable)
  - `@type` (string) (default: "IecPrice")
  - `amount` (number, nullable)
  - `currency` (string, nullable)
- `available_formats` (array) (default: [])
- `available_files` (array) (default: [])
  - `@type` (string) (default: "IecAvailableFile")
  - `file_format` (string, nullable)
  - `language` (string, nullable)
  - `file_type` (string, nullable)
  - `has_full_pdf` (boolean, nullable)
  - `has_supporting_content` (boolean, nullable)
  - `has_zipped_document` (boolean, nullable)
- `preview_languages` (array) (default: [])
- `deliverables` (array) (default: [])
  - `@type` (string) (default: "IecDeliverable")
  - `art_num` (string, nullable)
  - `deliverable_type` (string, nullable)
  - `location` (string, nullable)
  - `languages` (array) (default: [])
  - `last_update` (string, nullable)
- `committee` (object, nullable)
  - `@type` (string) (default: "IecCommittee")
  - `level_1` (string, nullable)
  - `level_1_title` (string, nullable)
  - `level_2` (string, nullable)
  - `level_2_title` (string, nullable)
- `ics` (array) (default: [])
  - `@type` (string) (default: "IecIcsCode")
  - `level_1` (string, nullable)
  - `level_1_title` (string, nullable)
  - `level_2` (string, nullable)
  - `level_2_title` (string, nullable)
  - `level_3` (string, nullable)
  - `level_3_title` (string, nullable)
- `classifications` (array) (default: [])
  - `@type` (string) (default: "IecClassification")
  - `classification_type` (string, nullable)
  - `value` (string, nullable)
- `lifecycle` (array) (default: [])
  - `@type` (string) (default: "IecLifecycleEntry")
  - `id` (string, nullable)
  - `reference` (string, nullable)
  - `edition` (string, nullable)
  - `publication_date` (string, nullable)
  - `forecast_publication_date` (string, nullable)
  - `status` (string, nullable)
  - `stage` (string, nullable)
  - `is_in_progress` (boolean, nullable)
  - `is_national_committee_only` (boolean, nullable)
- `related_publications` (array) (default: [])
  - `@type` (string) (default: "IecRelatedPublication")
  - `id` (string, nullable)
  - `reference` (string, nullable)
  - `status` (string, nullable)
  - `url` (string, nullable)
- `referenced_by` (array) (default: [])
  - `@type` (string) (default: "IecRelatedPublication")
  - `id` (string, nullable)
  - `reference` (string, nullable)
  - `status` (string, nullable)
  - `url` (string, nullable)

## Errors

### 422 — Validation Error

An input could not be parsed as an IEC publication id

What to do: Check the fields against this schema. A URN with the wrong prefix is the most common cause.

- `detail` (array)
  - `loc` (array, required)
  - `msg` (string, required)
  - `type` (string, required)
  - `input` (any)
  - `ctx` (object)

### 408

The request ran past its time limit

What to do: Raise `timeout` in the request body, up to the maximum this endpoint documents. Lowering `count` or turning off the `with_*` flags also helps, because less work finishes sooner.

### 412

None of the supplied ids exist in the IEC catalogue

What to do: Retrying will not help: either the entity does not exist, or the input points at a different one.

### 429

Too many requests: a rate limit or a usage window is exhausted

What to do: When the response carries an X-Retry-After header, wait that many seconds and retry: the same number is in the body as `detail.retry_after`, and the limit clears once that window passes. The message in the body names the limit that was hit.

### 500

Something broke on our side

What to do: Retrying will not help. If it keeps happening, send us the X-Request-ID from the response headers.

### 529

Rate limit reached, or the endpoint is overloaded

What to do: Wait at least 30 seconds, then retry.

## Response envelope

Success: Array of objects (may be empty if no results)

Error: Error may coexist with partial results if it occurs mid-execution. Check X-Error header and status code.

Every response carries these headers:

- `X-Error` — Error message text (present only on error)
- `X-Request-ID` — Unique request identifier
- `X-Execution-Time` — Execution time in seconds
- `X-Result-Count` — How many records the body carries. 0 means an empty result, which is a normal answer and not by itself an error. A non-zero count can come back together with X-Error when the failure happened partway through — read this header and X-Error independently.
- `X-Total-Available-Results` — How many records exist for this query, when the endpoint can say. On a `dry_run` request this is the answer and the body is empty. It saturates: the endpoint's documented maximum means 'at least that many', any smaller number is exact.
- `X-Warning` — Present when the request body carried keys this endpoint does not document. They were ignored, so any filter you meant to apply through them did not apply. Check the spelling against this schema and retry.
- `X-Retry-After` — Seconds to wait before retrying. Present only on 429.