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description=Document endpoints with the multipart/form-data content type;

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multipart, file, upload, array, of, files, webhooks, server, sent, events, and, streaming, apis, documentation, api, definitions, resources, company,

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multipart file upload fern documentation for ai agents a documentation index is available at the root level at llms txt append llms txt to any url for a page level index or md for the markdown version of any page search ask ai book a demo log in start for free overview what is an api definition project structure openapi overview overlays overrides authentication servers sync your specification endpoints http json endpoints webhooks multipart form uploads server sent events extensions integrate your server framework generators yml reference asyncapi openrpc grpc fern definition what is an api definition project structure overview overlays overrides authentication servers sync your specification http json endpoints webhooks multipart form uploads server sent events overview api version audiences availability base path default values enum descriptions names and availability request response examples api explorer control global headers ignoring elements sdk method names sdk variables tag display names parameter names property names idempotency pagination retry behavior schema names server names and url templating fastapi generators yml reference overview overrides authentication servers sync your specification publish subscribe operations message formats message bindings overview audiences availability request response examples ignoring elements server names overview overrides authentication servers sync your specification json rpc methods overview audiences availability request response examples ignoring elements sdk method names sdk group names server names overview overrides authentication servers sync your specification grpc services streaming error handling generators yml reference overview authentication types overview http json endpoints multipart form uploads bytes server sent events webhooks websockets errors imports examples audiences availability overview environments global headers errors packages depending on other apis export to openapi book a demo log in start for free english light on this page array of files scroll to top openapi endpoints multipart file upload document endpoints with the multipart form data content type ask a question copy page view as markdown more actions multipart requests combine one or more sets of data into a single body separated by boundaries you typically use these requests for file uploads and for transferring data of several types in a single request for example a file along with a json object openapi yml 1 paths 2 upload 3 post 4 summary upload a file 5 description upload a file using multipart form data encoding 6 operationid uploadfile 7 tags 8 file 9 requestbody 10 required true 11 content 12 multipart form data 13 schema 14 type object 15 properties 16 file 17 type string 18 format binary 19 description the file to upload 20 description 21 type string 22 description a description of the file optional 23 required 24 file 25 responses 26 200 27 description successful upload 28 content 29 application json 30 schema 31 type object 32 properties 33 message 34 type string 35 fileid 36 type string any request body that is defined with a multipart form data content type will be treated as a multipart request within a given multipart request a string parameter with format binary will represent an arbitrary file array of files if your endpoint supports an array of files then your request body must use an array type openapi yml 1 paths 2 upload 3 post 4 summary upload multiple files 5 operationid uploadfiles 6 requestbody 7 content 8 multipart form data 9 schema 10 type object 11 properties 12 files 13 type array 14 items 15 type string 16 format binary 17 description an array of files to upload was this page helpful yes no edit this page previous webhooks next server sent events and streaming apis checking status soc 2 soc 2 type ii 2026 fern birch solutions inc a postman company documentation sdks docs ask fern cli reference api definitions openapi asyncapi openrpc grpc resources blog support pricing company brand kit privacy policy terms of service api definitions api definitions import and configure your api specifications english api definitions api definitions import and configure your api specifications