BSON_APPEND_BINARY(3)

💖 BSON_APPEND_BINARY 💖

okay so welcome to the libbson manual page for bson_append_binary(), bestie ✨ this is the one that appends binary data into a BSON document, and it’s honestly kind of a big deal. let’s get into it fr fr.

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✨ SYNOPSIS ✨

#define BSON_APPEND_BINARY(b, key, subtype, val, len) \
   bson_append_binary (b, key, (int) strlen (key), subtype, val, len)

bool
bson_append_binary (bson_t *bson,
                    const char *key,
                    int key_length,
                    bson_subtype_t subtype,
                    const uint8_t *binary,
                    uint32_t length);

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🎀 PARAMETERS 🎀

• bson — a bson_t. that’s the document you’re adding to, periodt 💅
• key — the key name. name it cute, name it clear 🫶
• key_length — the length of key in bytes, or -1 to use strlen(). yes, -1 is the “just figure it out” option ✨
• subtype — a bson_subtype_t indicating the binary subtype.
• binary — a buffer to embed as binary data. May be NULL for an empty binary value 🙈
• length — the length of buffer in bytes. Must be 0 if binary is NULL. no cap, that condition matters.

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🌸 DESCRIPTION 🌸

The bson_append_binary() function shall append a new element to bson containing the binary data provided. that’s the whole vibe: you hand it binary data, it adds a new element to your bson, and it slays 💖

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🦋 RETURNS 🦋

Returns true if the operation was applied successfully. the function will fail if appending binary grows bson larger than INT32_MAX — so yeah, there’s a size limit, bestie, and it is not a suggestion 💀

SEE ALSO: bson_append_binary_uninit()

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🫶 AUTHOR 🫶

MongoDB, Inc

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👑 COPYRIGHT 👑

2009-present, MongoDB, Inc.

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catch you later — this was the BSON_APPEND_BINARY(3) page from libbson 2.5.6, dated Oct 09, 2026. go append some binary, bestie 💅✨